EP 0321357 B1 19920603 - METHOD OF SUB-SAMPLING A SEQUENCE OF ELECTRONIC PICTURES IN THE AXIS OF MOVEMENT
Title (en)
METHOD OF SUB-SAMPLING A SEQUENCE OF ELECTRONIC PICTURES IN THE AXIS OF MOVEMENT
Publication
Application
Priority
FR 8717602 A 19871216
Abstract (en)
[origin: EP0321357A1] The aim of the invention is to carry out a sub-sampling of images making it possible to optimise the spatial and temporal resolution of the compressed signal, so as to permit the most faithful possible reconstruction of the received image from the said compressed image signal, and possibly from supplementary assisting data. <??>According to the invention, a velocity-vector field is determined for at least each image to be sub-sampled, and the said images to be sub-sampled are sub-sampled by eliminating certain image points (32), the image points retained (33) being chosen so as to avoid the selection of an image point (32) corresponding spatially to the approximate projection of a source point retained (30) during the sub- sampling of the preceding sub-sampled image, the said projection resulting from the application to the said source point (30) of the associated displacement vector (Vy). <IMAGE>
IPC 1-7
IPC 8 full level
H04N 7/015 (2006.01); H04N 7/12 (2006.01)
CPC (source: EP US)
H04N 7/0152 (2013.01 - EP US); H04N 7/125 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT NL
DOCDB simple family (publication)
EP 0321357 A1 19890621; EP 0321357 B1 19920603; DE 3871747 D1 19920709; DE 3871747 T2 19930211; FR 2625059 A1 19890623; FR 2625059 B1 19910802; JP H01264392 A 19891020; US 5161001 A 19921103
DOCDB simple family (application)
EP 88403220 A 19881216; DE 3871747 T 19881216; FR 8717602 A 19871216; JP 31831988 A 19881216; US 28245188 A 19881209